/u/french_commander's posts in /r/askscience

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How effective are systemic antibiotics such as penicillin-g, erthromycin when used topically compared with topical anti-bacterial agents such as iodine solution/ silver salts etc?

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Why is twisted pair or coaxial (eg ethernet) so much faster than serial cable (rs232) as an electro-magnetic medium for data transmission?

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If 1g of water was converted to hydrogen via electrolysis, then what would be the atmospheric buoyancy of the hydrogen at sea-level if it was contained by a balloon?

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Title	Upvotes	Mark as read	Favorited	Rating	Add to a list
How effective are systemic antibiotics such as penicillin-g, erthromycin when used topically compared with topical anti-bacterial agents such as iodine solution/ silver salts etc?	1
Why is twisted pair or coaxial (eg ethernet) so much faster than serial cable (rs232) as an electro-magnetic medium for data transmission?	1
If 1g of water was converted to hydrogen via electrolysis, then what would be the atmospheric buoyancy of the hydrogen at sea-level if it was contained by a balloon?	1